feat(stats): add C implementation for `stats/base/dists/hypergeometric/skewness` by anandkaranubc · Pull Request #4560 · stdlib-js/stdlib

anandkaranubc · 2025-01-05T11:10:36Z

Resolves

#3666

Description

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This pull request:

Adds a C implementation of the skewness of a hypergeometric distribution.
Includes benchmarks for the C implementation.
Provides examples demonstrating the usage of the hypergeometric skewness in C.

Related Issues

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This pull request:

Resolves Issue #3666.

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stdlib-bot · 2025-01-05T11:13:18Z

Coverage Report

Package	Statements	Branches	Functions	Lines
stats/base/dists/hypergeometric/skewness	$\color{green}203/203$ $\color{green}+100.00\%$	$\color{green}13/13$ $\color{green}+100.00\%$	$\color{green}2/2$ $\color{green}+100.00\%$	$\color{green}203/203$ $\color{green}+100.00\%$

The above coverage report was generated for the changes in this PR.

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anandkaranubc · 2025-01-08T07:51:33Z

Made the changes, taking feedback from #4593

anandkaranubc · 2025-01-08T07:51:39Z

/stdlib lint-autofix

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anandkaranubc · 2025-01-09T03:43:04Z

/stdlib update-copyright-years

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…eneration --- type: pre_commit_static_analysis_report description: Results of running static analysis checks when committing changes. report: - task: lint_filenames status: passed - task: lint_editorconfig status: passed - task: lint_markdown status: na - task: lint_package_json status: na - task: lint_repl_help status: na - task: lint_javascript_src status: na - task: lint_javascript_cli status: na - task: lint_javascript_examples status: na - task: lint_javascript_tests status: na - task: lint_javascript_benchmarks status: passed - task: lint_python status: na - task: lint_r status: na - task: lint_c_src status: missing_dependencies - task: lint_c_examples status: na - task: lint_c_benchmarks status: na - task: lint_c_tests_fixtures status: na - task: lint_shell status: na - task: lint_typescript_declarations status: na - task: lint_typescript_tests status: na - task: lint_license_headers status: passed --- --- type: pre_push_report description: Results of running various checks prior to pushing changes. report: - task: run_javascript_examples status: na - task: run_c_examples status: na - task: run_cpp_examples status: na - task: run_javascript_readme_examples status: na - task: run_c_benchmarks status: na - task: run_cpp_benchmarks status: na - task: run_fortran_benchmarks status: na - task: run_javascript_benchmarks status: passed - task: run_julia_benchmarks status: na - task: run_python_benchmarks status: na - task: run_r_benchmarks status: na - task: run_javascript_tests status: na ---

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anandkaranubc · 2025-02-17T02:39:21Z

/stdlib merge

…ewness

Planeshifter · 2025-03-01T02:08:23Z

+-   **n**: `[in] int32_t` number of draws.
+
+```c
+double stdlib_base_dists_hypergeometric_skewness ( const int32_t N, const int32_t K, const int32_t n );


Suggested change

double stdlib_base_dists_hypergeometric_skewness ( const int32_t N, const int32_t K, const int32_t n );

double stdlib_base_dists_hypergeometric_skewness( const int32_t N, const int32_t K, const int32_t n );

Planeshifter · 2025-03-01T02:12:31Z

+#include "stdlib/stats/base/dists/hypergeometric/skewness.h"
+#include "stdlib/math/base/special/sqrt.h"
+#include "stdlib/constants/float64/pinf.h"
+


I believe we need #include <stdint.h> here.

Planeshifter · 2025-03-01T02:14:21Z

+	double p;
+	double q;
+
+	if (  N < 0 || K < 0 || n < 0 || N == STDLIB_CONSTANT_FLOAT64_PINF || K == STDLIB_CONSTANT_FLOAT64_PINF || K > N || n > N ) {


Since N and K are int32, they can never be infinity.

Planeshifter

Thanks, Karan!

Left a few comments.

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Planeshifter

Thanks! Lgtm.

stdlib-bot · 2025-03-01T13:27:45Z

PR Commit Message

feat(stats): add C implementation for `stats/base/dists/hypergeometric/skewness`

PR-URL: https://github.com/stdlib-js/stdlib/pull/4560
Ref: https://github.com/stdlib-js/stdlib/issues/3666

Co-authored-by: Karan Anand <119553199+anandkaranubc@users.noreply.github.com>
Co-authored-by: Karan Anand <anandkarancompsci@gmail.com>
Co-authored-by: stdlib-bot <noreply@stdlib.io>
Reviewed-by: Philipp Burckhardt <pburckhardt@outlook.com>

Please review the above commit message and make any necessary adjustments.

anandkaranubc added 5 commits January 5, 2025 03:06

feat: add the C src files

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feat: add the C benchmark and example files

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chore: update copyright years

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anandkaranubc and others added 2 commits January 28, 2025 22:59

Merge branch 'stdlib-js:develop' into rfc/hypergeom-skewness

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Merge remote-tracking branch 'upstream/develop' into rfc/hypergeom-sk…

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…ewness

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Merge branch 'stdlib-js:develop' into rfc/hypergeom-skewness

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feat(stats): add C implementation for `stats/base/dists/hypergeometric/skewness`#4560

feat(stats): add C implementation for `stats/base/dists/hypergeometric/skewness`#4560
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	double stdlib_base_dists_hypergeometric_skewness ( const int32_t N, const int32_t K, const int32_t n );
	double stdlib_base_dists_hypergeometric_skewness( const int32_t N, const int32_t K, const int32_t n );

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anandkaranubc commented Jan 5, 2025

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